Machine for rolling finger-rings.



H. HEINRICH. MACHINE FOR ROLLING FINGER RINGS.

APPLICATION FILED MAY 29, I906.

Patented Jan. 10,1911.

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H. HEINRICH. MAUHINE FOR 1101mm Fiii'fi'fifi Rim.

Patented Jan. 10, 1911.

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' WITNESSES H. HEINRICH.

MACHINE POE ROLLING FINGER RINGS.

APPLICATION nun MAY 29, 1906.

Patented Jan. 10, 1911.

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INVENTOH ATTORNEY H. HENRIUH. MACHINE FOR ROLLING FINGER RINGS.

' APPLICATION FILED MAY 29, 1906.

Patented Jan. 10 1911.'

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H. HENRIGH. MACHINE FOR ROLLING FINGER RINGS.

APPLICATION FILED MAY 29, 1908.

Patented Jan. 10,1911.

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UNITED PATENT OFFICE.

HENRY HENRICH, OF NEW YORK, N. Y., ASSIGNOR TO J. R. WOOD & SONS, OF NEWYORK, N. Y., A GOPAR'I'NERSHIP.

MACHINE FOR ROLLING FINGER-RINGS.

Specification of Letters Patent.

Patented Jan. 10, 1911.

Application filed May 29, 1908. Serial No. 319,378.

To all whom it may concern:

Be it known that l, l-lnxny Harmon, of New York, in the county of NewYork and in the State of New York, have invented a certain new anduseful Imprtwement in Machines for Rolling; Finger-Rings, and do herebydeclare that the following is a full, (Iltli-Uf. and exact descriptionthereof, referencebeing' had to the accompanying drawings, in whichFigure 1 is a plan view of a machine for rolling; fil'i rer rings, whichmachine can bodies my invention; Fig. 2 is a front elevation of themachine of F ig. 1; Figs. 3 and at are respectively right and leftelevations; Fin. 5 is a section on the line 5 5 of Fig. 1; Fig. (3 anelevation partly in section of means for adjusting the swinging framecarrying the ring swaging roller; Fig. 7 is a front View, and F ig. 8 aside view on an enlarned scale of the parts which operate upon the ring.and those for indicat ins: its Fig. 9 is a plan view the compoundslide-rest and tools for turning the edges of the ring, and of thering-red ing roller and chip guard; Fig. 10 is a. front elevation ofrig. 9.; and Fig. 11 is a view on an enlarged scale of the parts in Fig.5 which operate upon the ring.

The object of my invention has been to produce a machine which shall becapable of rolling finger-rings that shall be substantially circular,and shall require no turning except at the edges, and that shall. alsobe capable of indicating the size of the ring at the various stages ofthe rolling; opera tion, and to such ends my invention consists in themachine for rolling finger-rings hereii'lafter specified.

In carrying; my invention into practice, I provide a base 1 havingbearing brackets 2. 3 and r1 rising; therefrom. A mandrel \Jkm sprndle pis mounted in bearings 1n the brackets Q and 3 and is driven by a gear 6secured on its outer end, which gear meshes witha pinion 7- connectedwith a belt-pulley 8 or other means of driving. The mandrel 7, to belater described, is provided with a tapered shank that is seated in atapered socket in the mandrel after the usual manner of lathe centers.The spindle carries a pinion 8 that meshes with a gear 9, the latterbeing fixed on a shaft 10 that is mounted in hearings in the brackets 2,3, and 41. On the opposite end of the shaft 10 is a pinion 11, whichn'ieshes with an idler pinion 12 that meshes with a pinion 13, on ashaft 14, which latter carries a rin g, '-shapino roller 15 to be laterdescribed. The pinion 11 has a slot 11" to receive the end of a dowelpin 1.1" projecting from the end of the shaft 10. The shaft 11 ismounted in the arms of a frame 113, the latter having arms 17 and 18that are pivoted on the shaft 10. The pinion '12 is journaled on a studscrewed to the arm 17. The mandrel 7 is provided with a concave neck orgroove 19 that is of the shape to be given to the inside of the ring,and the roller 15 is provided with a similar neck or groove 20 that isof the shape to be given to the exterior of the ring. In order to adjustthe groove 20 in the direction of the length of the shaft 1 1 tocorrespond to the groove 19, a sleeve 21 is loosely mounted on the shaft10, and has a ring or nut 22 threaded upon its on terior and thelock-nut 23. The sleeve and the nuts are provided with holes forengagement by a spanner wrench. The sleeve and nuts are interposedbetween the arm 18 of i the frame 16 and the bearing 3, and by means ofthem the frame 16 together with the ring-forming roller can be movedaway from the bearing bracket 3. Adjustment in the opposite direction iseifected by a screw 2-1 passing through a washer 25 into the end of theshaft 10, the screw serving to force the washer against the pinion 11and to force the latter against the arm 17 and thus to force the frame16 toward the bearing bracket 3. By these means the two ring forminggrooves may be adjusted with reference to each other.

In order to raise and lower the frame, the latter is provided with ananti friction roller 26 which normally rests on the cam 27, the latterbeing secured upon the end of a shaft 28 whose end is provided with agear 29. The gear 29 meshes with a pinion 30 on one end of a short shaft31 whose opposite end has a gear 32 meshing with a pinion 33 on theshaftof the hand-wheel 34:. By turning the hand-wheel, the cam 27 isrotated-and the frame 16 raised and-lowered causing the ring-formingroller to approach and recede from the mandrel. An arm is secured on theshaft 28, and by contacting .with the bearing of the shaft 31, it actsas a stop to prevent rotation of the hand-shaft in the wrong directionor too far. A slideway 36 is mounted on the bracket 3 and a slide 37 ismounted in the slide-way. A weighted lever 38 is pivoted to a bracket39, secured to the slide-way, and engages a screw or stud 40 on theslide so that a weight placed on the arm tends to force the slidedownward. Two levers 41 are fulcrumed on the slide way 36, their upperends being normally drawn toward each other by a spring 42 connectingthem, such upper ends being provided with inclined surfaces 43 that areadapted to receive between them a wedge 44 carried by the lower end ofthe slide-way. The lower ends of the levers 41 are provided with rollers45 having concave grooves formed in their surfaces, the said groovesbeing preferably of deeper curvature than the exterior of the ring to beformed, so that the said rollers engage the outer surfaces of the ringnear its edges and get a lateral hold on the ring to prevent itswabbling as hereinafter described.

The slide 37 has secured to it an arm 46 which extends downward and atits lower end is preferably provided with an antifriction roller. Suchroller rests upon an arm 47 secured to a shaft 48 whose opposite end hasan arm 49 that rests against a cam 50 on the shaft 28. The shape of thecam 50 is such that, when the hand-wheel is turned to lower the frame16, the arm 46 is raised to elevate the slide 37 and permit the spring42 to retract, the upper ends of the levers 41 moving the rollers 45away from each other and from the mandrel.

In order to trim the edges of the ring, a compound slide rest is mountedupon the frame 16. Such rest consists of a transversely movable slide 51on which are mounted two longitudinally movable slides 52, the latterbeing simultaneously moved in opposite directions by a screw 53. Theslides 52 are each provided with a tool 53" having a cutting edge thatis adapted to trim the edges of the ring.

In order to prevent the chips formed by trimming the edges of the ringfrom getting between the roller and the ring, and thus being rolled intothe ring, a guard 54 is secured to a finger 55 on the arm 18, or to anyother convenient support, and such guard over-lies the grooves in theroller. The guard is preferably provided with wings 56 to catch turningswhich tend to swing laterally, and a piece of fibrous substance 57 suchas cotton waste, is preferably clamped under the guard 54 to keep thegroove clean.

In order to indicate at all times the size of the ring being formed, afinger 58 of such shape as to be readily received within the ring ismounted on a slide 59 having a rack 60 that meshes with a pinion 61 onan arbor 62, said arbor carrying a pointer 63 that is movable over adial 64. A weight 65 conthe inside surface of the ring, and as the ringenlarges, the weight continues to raise the finger 58.

In order that the finger 58 may be near the mandrel when the blank to berolled is put on the mandrel, the weight 65 is raised at the same timethe slide 37 is raised by the provision of a cup or bracket 6?) that isattached to the arm 46 directly beneath the weight 65.

In the operation of the above described embodiment of my invention, aring blank is placed over the mandrel, and, the machine being in motion,the hand-wheel is turned to raise the ring forming roller toward themandrel. The arrangement described affords sufficient power to compressthe ring between the roller and the mandrel, and cause it to take theshape of their grooves. At the same time the roller is raised, the slide37 is permitted by the cam 50 to descend until the pressure due to itsweighted lever is transmitted upon the beveled upper ends of the levers41. This causes the upper ends of said levers to swing outward and theirlower ends to swing inward, and thus force the rollers 45 against thering being formed. The action is a firm steady pressure of the rollers45 against the ring being formed. The squeezing action be tween themandrel and the rollers 15 tends to elongate and flatten that portion ofthe ring between such parts, while the pressure of the rollers 45 tendsto bend the flattened portion of the ring to make it the shape of acircle. Owing to the fact that the shaft 14 of the roller 15 extends inthe opposite direction from the mandrel spindle, I am enabled to providethe gearing above described, so that the surface speed of the groove inthe roller 15 is exactly the same as that of the groove in the mandrel.If the groove in the roller 15 traveled faster than that in the mandrel,it would tend to stretch the outer surface of the ring, and thus to bendinward the portion of the ring being acted upon. If on the contrary, thesurface of the groove in the mandrel traveled faster than the surface ofthe grooves in the roller 15, the tendency would be to stretch thesurface of the inside of the ring more than that of the outside, and tobend outward the portion of the ring being acted upon. By making thesurface speeds the same, the rolling action between the mandrel and theroller takes place without any tendency to bend the portion being actedupon either outward or inward. The uniform pressure of the rollers 45upon the ring, owing to the action of the weighted arm, insures that theenlargement of the ring shall be accomplished without any substantialchange in the accuracy of the ring. It will be noted that the rollers 45engage the ring at a level above that of the axis of the mandrel, and, Iattribute the result ob tained somewhat to the relative position of the)ZlI'lLS, as therrollers L5 engage the outer sur ace near the edges ofthe ring, they secure a good lateral hold on the ring, and pre vent itwabbling and thus becoming imperfeet. The fact that they are placedabove the center of the axes of the mandrel enables them to get a stronghold on the ring to prevent wabbling, as they engage it well up alongthe sides of the ring. The weight on the lever 38 is chosen according tothe particular size and weight of ring being formed.

As the ring enlarges, the pointer 63 indicates on the dial at all timesthe exact size of the ring being formed, so that it is not necessary toremove the ring from the machine in order to determine whether or not itis of the desireo size.

It is obvious that various changes can be made in the above illustratedconstruction which will. be within the spirit of my invention, and Idesire not to be limited beyond the requirements of the prior art andthe language of my claims.

I claim-- 1. In a machine for rolling rings, the combination of ashaft,a mandrel mounted thereon, a pivoted frame, a shaft pivoting said frame,a shaft having bearings in said frame, a ring-forming roller mounted onsaid second shaft, means for swinging said frame to carry said rollertoward and from said mandrel and gearing between the framepivoting shaftand the roller shaft.

2. In a machine for rolling rings, the combination of a frame, a shaftjournaled therein, a mandrel in said shaft, a frame pivoted upon thefixed portion of the machine, a shaft having bearings in the said frame,gearing for driving said shafts, a ring-forming roller mounted on saidsecond shaft, means for swinging said frame to move said roller towardand from said mandrel, said means consisting of a cam journaled upon themachine frame and engaging said pivoted frame, a handle, and gearing fortrans.- mitting motion from said handle to said cam.

3. In a machine for rolling rings, the combination of the machine frame,a shaft journaled thereon, a mandrel mounted in said shaft, a framepivoted upon a fixed portion of the machine, a shaft having hearings insaid frame, gearing connecting said mandrel and said shaft in saidpivoted frame, a ringforming roller mounted on said shaft in saidpivoted frame, and means for swinging said frame to move said rollertoward and from said mandrel, said means consisting of a canr pivotedupon the machine frame and engaging said pivoted frame, a handle, gearmgfor transmitting motion from said handle to said cam, and a stopconnected to said cam and adapted by striking another portion of themachine to limit the movements of said cam.

4. In a machine for rolling rings, the combination of a mandrel shaftmounted in sta tionary bearings, a. mandrel mounted there on, a secondshaft mounted in stationary bearings, a frame pivoted on said secondshaft, a shaft journaled in said pivoted frame, a ring-forming rollermounted on said last-mentioned shaft, gearing for driving said mandrelshaft and said second shaft, gearing connecting said second shaft withthe shaft journaled in said pivoted frame, and means for raising andlowering said frame to move said ring-forming roller toward or away fromsaid mandrel.

5. In a machine for rolling rings, the combination of a mandrel shaftmounted in stationary bearings, a mandrel mounted thereon, a pivotedframe, a shaft j ournaled in said frame, a ring forming-roller mountedon said shaft, a third shaft mounted in stationary bearings upon whichshaft said frame is pivoted, and means for adjusting said frame toadjust said roller with reference to said mandrel, said means consistingof a sleeve journaled on said third shaft between said frame and astationary part, a nut threaded on said sleeve, and spacing means on theend of said third shaft, and a bolt threaded into the end of saidshaftand bearing on said spacing means, the latter bearing against theend of said pivoted frame opposite to that engaged by said screw sleeve,whereby when said bolt is turned, said sleeve is moved along said shaftand carried with the said pivoted frame, and gearing for driving saidshafts.

6. In a machine for rolling rings, the combination of a mandrel shaftmounted in stationary bearings, a mandrel mounted thereon, a pivotedframe, a shaft journaled in said frame, a ring-forming roller mounted onsaid shaft a third shaft mounted in sta tionary bearings upon whichshaft said frame is pivoted, and means for adjusting said frame toadjust said roller with reference to said mandrel, said means consistingof a sleeve journaled on said shaft between said frame and a stationarypart, a nut threaded on said sleeve, spacing means comprising a pinionon the end of said third shaft, and a bolt threaded into the end of saidshaft and bearing on said spacing means, the latter bearing against theend of said pivoted frame opposite to that engaged by said screw sleeve,whereby when said bolt is turned, said pinion is moved along said shaftand carried with the said pivoted new, and gear on said roller-shaft anddriven from said pinion.

7. In a machine for rolling finger rings, the combination of a mandrel,a ring-forming roller, shafts, upon which said parts are mounted,gearing on these shafts, a third shaft having gearing to convey motionfrom the mandrel shaft to the ring forming roller shaft and means uponsaid third shaft for adjusting said shafts longitudinally relative toeach other to adjust said mandrel and roller so that the ring-formingsurfaces shall bear proper relation to each other.

8. In a machine for rolling rings, the combination of a mandrel, aring-forn'iing roller, means for causing said parts to approach orrecede from each other, auxiliary rollers operable upon the outside ofthe ring movable toward and from said mandrel, and automatic andadjustable means comprising a weight for moving said auxiliary rollerstoward and from said mandrel, with an even pressure.

9. In a machine for rolling finger rings, the combination of a mandrel,a ring-forming roller, auxiliary rollers, pivoted arms on which saidauxiliary rollers are mounted, a weighted arm, and means fortransmitting motion from said weighted arm to said pivoted. arms.

10. In a machine for rolling finger rings, the combination of a mandrel,a ring-forming roller, auxiliary rollers, pivoted arms on which saidauxiliary rollers are mounted, a weighted arm, and means fortransmitting motion from said weighted arm to said pivoted arms, saidmeans comprising a slide movable by said weighted arm, and a wedgeadapted to engage beveled surfaces on said arms.

11. In a machine for rolling finger rings, the combination of a mandrel,a ring-forming roller, auxiliary rollers, pivoted arms on which saidauxilliary rollers are mounted, a weighted arm. and means fort-ansmitting motion from said weighted arms to said pivoted arms, saidmeans comprising a slide movable by said weighted arm, and a wedgecarried by said slide, said wedge being adapted to engage beveledsurfaceson said arms, said arms being connected by a spring tending tohold them against said wedge.

12. In a machine for rolling finger rings, the combination of a mandrel,and a ringforming roller, gearing for driving them, pivoted arms,auxiliary rollers carried by one end of said arms, a slide movabletoward and from said mandrel, a wedge on said slide engaging said arms,a spring connecting said arms and holding them against said wedge, alever engaging said slide and means on said lever for receivingreplaceable weight members, for forcing said slide toward said mandrelto move said auxiliary rollers toward said mandrel.

18. In a machine for rolling rings, the combination of a mandrel, aringforming roller, means for driving their ring-engaging surfaces atsubstantially the same speed,

auxiliary rollers provided with ring-engaging grooves that are deeperthan the ring forming grooves in the roller, whereby said auxiliaryrollers engage the ring iilearer its edges than the ring-forming rollerand prevent it from \vabbliug, and automatic means for forcingsaidauxiliary rollers toward said mandrel at a predetermined pressure.

ll. In a machine for forming rings, the. combination of n'ieans forrolling a ring, and two opposed tools for turning the opposite edgesthereof, said tools being mounted on slides movable parallel to the axisof the ring, and a right-and-left screw for adj usting said slides.

15. In a machine for formingrings, the combination of means for rollin aring, and two opposed tools for turning the opposite edges thereof, saidtools being mounted on slides movable parallel to the axis of the ring,a right-and-left screw for adjusting said slides, said slides beingmounted on a transverse slide, and means for adjusting said transverseslide.

16. In a. machine for fo ming rings the combination of a stationaryshaft, a mandrel mounted thereon, a frame movable toward and from saidmandrel, a shaft journaled in said frame, a ring-forming roller mountedon said last-mentioned shaft, and opposed tools mounted on said framefor turning the opposite edges of the rin 17. In a machine for formingrings, the combination of a stationary shaft, a man drel mountedthereon, a frame movable toward and from said mandrel, a shaft journaledin said frame, a. ring-forming roller mounted on said last-mentionedshaft, and opposed tools mounted on said frame for turning the oppositeedges of the ring, each of said tools being mounted on a slideadjustably parallel to the axis of the ring.

18. In a machine for forming rings, the combination of astationaryshaft, a mandrel mounted thereon, a frame movable toward and from saidmandrel, a shaft journaled in said frame, a. ring-forming roller mountedon said last-mentioned shaft, and opposed tools mounted on said framefor turning the opposite edges of the ring, each of said tools beingmounted on a slide adjustable parallel to the axis of the ring, saidslide being mounted on a slide adjustable transversely to the axis ofthe ring.

19. In a machine for forming rings, the combination of a mandrel,ring-forming roller, opposed tools for turning the opposite edges of thering, and a guard over-lying the ring-forming groove in the roller andunderlying the tools.

20. In a machine for forming rings, the combination of a mandrel,ring-forming roller, opposed tools for turning the opposite edges of thering, and a guard over-lying the ring-forming groove in the roller andunderlying the tools, said guard having vertical SllliftlCGS, parallelto said groove to catch the tln'nings.

2.1. In a machine for forn'iing rings, the combination of a mandrel,ring forming roller, opposed tools for turning the opposite edges of thering, a guard over-lying the ring-forming groove in the roller andunderlying the tools, and fibrous material secured under said guard.

22. In a machine for forming rings, the combination of a mandrel, aring-forming roller, means for n'ioving said parts toward and from eachother, a finger adapted to engage the inside of the ring, means normallydrawing said linger against the inside of the ring, and connections soconstructed that when said mandrel and roller are moved apart, saidlinger shall be moved toward said mandrel.

In a machine for forming "rings, the combination of a mandrel, aring-forn'ling roller, means for moving said parts toward and from eachother, a finger adapted to engage the inside of the ring, a cord andweight connected to said finger, and tending to'move it against theinside of the ring, and a support connected to said means for moving themandrel and roller relative to each other, said snnnort engaging saidweight when said mandrel and roller are moved apart, whereby said fingeris permitted to return toward said mandrel in position to engage theinside of another ring blank.

Eat. In a machine for forming finger rings,

the con'ibination of a mandrel, a finger ringforming roller, means forforcing the mandrel and roller together, auxiliary rollers, and meansfor mechanically forcing said auxiliary rollers toward said mandrel at apredetermined pressure, said last mentioned means having an arm adaptedto be acted upon by said first mentioned means so that when said mandreland roller are forced together, said means for operating the auxilliaryrollers are permitted to act, and whereby when said mandrel and rollersare separated, said auxiliary rollers are re 'tracted.

25. In a machine. for forming rings, the combination of a mandrel andring-forming roller, a frame movable toward said nandrel, said framecarrying said roller, auxiliary rollers movable toward and from saidmandrel, means, comprising a weighted arm, for moving said auxiliaryrollers toward said mandrel, means for moving said frame, said meanscomprising a cam for raising said frame, another cam for raising theweighted arm, an arm adapted to be operated by said other cam, and meansconnecting said arm with the first-mentioned means, so that when saidframe moves away from said mandrel, said weight is raised.

In testimony that I claim the foregoing I have hereunto set my hand.

ARTHUR E. YVALKER, EDWIN J. PRINDLE.

